1515144960 has 288 divisors, whose sum is σ = 6145735680. Its totient is φ = 346263552.

The previous prime is 1515144959. The next prime is 1515144971. The reversal of 1515144960 is 694415151.

1515144960 is a `hidden beast` number, since 1 + 5 + 151 + 449 + 60 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 238789 + ... + 245051.

It is an arithmetic number, because the mean of its divisors is an integer number (21339360).

Almost surely, 2^1515144960 is an apocalyptic number.

1515144960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1515144960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3072867840).

1515144960 is an abundant number, since it is smaller than the sum of its proper divisors (4630590720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1515144960 is an equidigital number, since it uses as much as digits as its factorization.

1515144960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6300 (or 6280 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 1515144960 is about 38924.8630055393. The cubic root of 1515144960 is about 1148.5539379318.

The spelling of 1515144960 in words is "one billion, five hundred fifteen million, one hundred forty-four thousand, nine hundred sixty".